8000 ngClass[Odd/Even] overhaul by gkalpak · Pull Request #15228 · angular/angular.js · GitHub
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ngClass[Odd/Even] overhaul #15228

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ngClass[Odd/Even] overhaul #15228

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8822006
refactor(ngClass): remove unnecessary dependency on `$animate`
gkalpak Oct 7, 2016
0409589
refactor(ngClass): remove redundant `$observe`r
gkalpak Oct 7, 2016
2705085
test(ngClass): add some tests about one-time bindings and objects ins…
gkalpak Oct 7, 2016
0ba4be6
fix(ngClassOdd/Even): keep track of classes even if odd/even do not m…
gkalpak Oct 7, 2016
89268af
perf(ngClass): only access the element's `data` once
gkalpak Oct 7, 2016
2871a11
refactor(ngClass): simplify conditions
gkalpak Oct 7, 2016
a7e69f7
refactor(ngClass): move helper functions outside the closure
gkalpak Oct 7, 2016
37cec7a
refactor(ngClass): exit `arrayDifference()` early if an input is empty
gkalpak Oct 7, 2016
5708424
perf(ngClass): avoid deep-watching (if possible) and unnecessary copies
gkalpak Oct 7, 2016
739f723
fixup! refactor(ngClass): remove unnecessary dependency on `$animate`
gkalpak Oct 8, 2016
181c51b
fixup! refactor(ngClass): remove redundant `$observe`r
gkalpak Oct 8, 2016
16e666b
fixup! test(ngClass): add some tests about one-time bindings and obje…
gkalpak Oct 8, 2016
dfe4307
squash! fix(ngClassOdd/Even): keep track of classes even if odd/even …
gkalpak Oct 8, 2016
f766698
fixup! perf(ngClass): avoid deep-watching (if possible) and unnecessa…
gkalpak Oct 8, 2016
a9742f9
fixup! refactor(ngClass): simplify conditions
gkalpak Oct 10, 2016
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perf(ngClass): only access the element's data once
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@gkalpak
gkalpak committed Oct 7, 2016
commit 89268afb341487aa4e26148d87ad6d6c66e09d3c
14 changes: 10 additions & 4 deletions src/ng/directive/ngClass.js
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,16 @@ function classDirective(name, selector) {
return {
restrict: 'AC',
link: function(scope, element, attr) {
var classCounts = element.data('$classCounts');
var oldVal;

if (!classCounts) {
// Use createMap() to prevent class assumptions involving property
// names in Object.prototype
classCounts = createMap();
element.data('$classCounts', classCounts);
}

if (name !== 'ngClass') {
scope.$watch('$index', function($index, old$index) {
/* eslint-disable no-bitwise */
Expand Down Expand Up @@ -44,10 +52,8 @@ function classDirective(name, selector) {
}

function digestClassCounts(classes, count) {
// Use createMap() to prevent class assumptions involving property
// names in Object.prototype
var classCounts = element.data('$classCounts') || createMap();
var classesToUpdate = [];

forEach(classes, function(className) {
if (count > 0 || classCounts[className]) {
classCounts[className] = (classCounts[className] || 0) + count;
Expand All @@ -56,7 +62,7 @@ function classDirective(name, selector) {
}
}
});
element.data('$classCounts', classCounts);

return classesToUpdate.join(' ');
}

Expand Down
0